]> de.git.xonotic.org Git - xonotic/netradiant.git/blobdiff - tools/quake3/q3map2/light.c
always chmod the release exe file
[xonotic/netradiant.git] / tools / quake3 / q3map2 / light.c
index 977fa32f28fbbe4dae12893fec306c30fd81dacf..a703faacf53e8fff145e897ef42351055e3e62af 100644 (file)
@@ -750,13 +750,15 @@ int LightContributionToSample( trace_t *trace )
        float                   add;
        float                   dist;
        float                   addDeluxe = 0.0f, addDeluxeBounceScale = 0.25f;
-       qboolean                angledDeluxe = qfalse;
+       qboolean                angledDeluxe = qtrue;
        float                   colorBrightness;
+       qboolean                doAddDeluxe = qtrue;
        
        /* get light */
        light = trace->light;
        
        /* clear color */
+       trace->forceSubsampling = 0.0f; /* to make sure */
        VectorClear( trace->color );
        VectorClear( trace->colorNoShadow );
        VectorClear( trace->directionContribution );
@@ -820,8 +822,13 @@ int LightContributionToSample( trace_t *trace )
                        angle = DotProduct( trace->normal, trace->direction );
                        
                        /* twosided lighting */
-                       if( trace->twoSided )
-                               angle = fabs( angle );
+                       if( trace->twoSided && angle < 0 )
+                       {
+                               angle = -angle;
+
+                               /* no deluxemap contribution from "other side" light */
+                               doAddDeluxe = qfalse;
+                       }
                        
                        /* attenuate */
                        angle *= -DotProduct( light->normal, trace->direction );
@@ -829,8 +836,13 @@ int LightContributionToSample( trace_t *trace )
                                return 0;
                        else if( angle < 0.0f &&
                                (trace->twoSided || (light->flags & LIGHT_TWOSIDED)) )
+                       {
                                angle = -angle;
 
+                               /* no deluxemap contribution from "other side" light */
+                               doAddDeluxe = qfalse;
+                       }
+
                        /* clamp the distance to prevent super hot spots */
                        dist = sqrt(dist * dist + light->extraDist * light->extraDist);
                        if( dist < 16.0f )
@@ -864,10 +876,20 @@ int LightContributionToSample( trace_t *trace )
                                        dist = SetupTrace( trace );
                                        if( dist >= light->envelope )
                                                return 0;
+
+                                       /* no deluxemap contribution from "other side" light */
+                                       doAddDeluxe = qfalse;
                                }
                                else
                                        return 0;
                        }
+
+                       /* also don't deluxe if the direction is on the wrong side */
+                       if(DotProduct(trace->normal, trace->direction) < 0)
+                       {
+                               /* no deluxemap contribution from "other side" light */
+                               doAddDeluxe = qfalse;
+                       }
                        
                        /* ydnar: moved to here */
                        add = factor * light->add;
@@ -898,8 +920,13 @@ int LightContributionToSample( trace_t *trace )
                        float dot = DotProduct( trace->normal, trace->direction ); 
 
                        /* twosided lighting */
-                       if( trace->twoSided )
-                               dot = fabs( dot );
+                       if( trace->twoSided && dot < 0 )
+                       {
+                               dot = -dot;
+
+                               /* no deluxemap contribution from "other side" light */
+                               doAddDeluxe = qfalse;
+                       }
 
                        /* jal: optional half Lambert attenuation (http://developer.valvesoftware.com/wiki/Half_Lambert) */
                        if( lightAngleHL )
@@ -1010,8 +1037,13 @@ int LightContributionToSample( trace_t *trace )
                        float dot = DotProduct( trace->normal, trace->direction ); 
 
                        /* twosided lighting */
-                       if( trace->twoSided )
-                               dot = fabs( dot );
+                       if( trace->twoSided && dot < 0 )
+                       {
+                               dot = -dot;
+
+                               /* no deluxemap contribution from "other side" light */
+                               doAddDeluxe = qfalse;
+                       }
 
                        /* jal: optional half Lambert attenuation (http://developer.valvesoftware.com/wiki/Half_Lambert) */
                        if( lightAngleHL )
@@ -1071,6 +1103,7 @@ int LightContributionToSample( trace_t *trace )
                {
                        /* trace */
                        TraceLine( trace );
+                       trace->forceSubsampling *= add;
                        if( !(trace->compileFlags & C_SKY) || trace->opaque )
                        {
                                VectorClear( trace->color );
@@ -1083,6 +1116,8 @@ int LightContributionToSample( trace_t *trace )
                /* return to sender */
                return 1;
        }
+       else
+               Error("Light of undefined type!");
 
        /* VorteX: set noShadow color */
        VectorScale(light->color, add, trace->colorNoShadow);
@@ -1108,11 +1143,16 @@ int LightContributionToSample( trace_t *trace )
        if( bouncing )
        {
                addDeluxe *= addDeluxeBounceScale;
+               /* better NOT increase it beyond the original value
                if( addDeluxe < 0.00390625f )
                        addDeluxe = 0.00390625f;
+               */
        }
 
-       VectorScale( trace->direction, addDeluxe, trace->directionContribution );
+       if(doAddDeluxe)
+       {
+               VectorScale( trace->direction, addDeluxe, trace->directionContribution );
+       }
        
        /* setup trace */
        trace->testAll = qfalse;
@@ -1120,6 +1160,7 @@ int LightContributionToSample( trace_t *trace )
        
        /* raytrace */
        TraceLine( trace );
+       trace->forceSubsampling *= add;
        if( trace->passSolid || trace->opaque )
        {
                VectorClear( trace->color );
@@ -1535,56 +1576,56 @@ void TraceGrid( int num )
        
        /////// Floodlighting for point //////////////////
        //do our floodlight ambient occlusion loop, and add a single contribution based on the brightest dir
-       if( floodlighty )\r
-       {\r
-               int k;\r
-               float addSize, f;\r
-               vec3_t dir = { 0, 0, 1 };\r
-               float ambientFrac = 0.25f;\r
-\r
-               trace.testOcclusion = qtrue;\r
-               trace.forceSunlight = qfalse;\r
-               trace.inhibitRadius = DEFAULT_INHIBIT_RADIUS;\r
-               trace.testAll = qtrue;\r
-\r
-               for( k = 0; k < 2; k++ )\r
-               {\r
-                       if( k == 0 ) // upper hemisphere\r
-                       {\r
-                               trace.normal[0] = 0;\r
-                               trace.normal[1] = 0;\r
-                               trace.normal[2] = 1;\r
-                       }\r
-                       else //lower hemisphere\r
-                       {\r
-                               trace.normal[0] = 0;\r
-                               trace.normal[1] = 0;\r
-                               trace.normal[2] = -1;\r
-                       }\r
-\r
-                       f = FloodLightForSample( &trace, floodlightDistance, floodlight_lowquality );\r
-\r
-                       /* add a fraction as pure ambient, half as top-down direction */\r
-                       contributions[ numCon ].color[0]= floodlightRGB[0] * floodlightIntensity * f * ( 1.0f - ambientFrac );\r
-                       contributions[ numCon ].color[1]= floodlightRGB[1] * floodlightIntensity * f * ( 1.0f - ambientFrac );\r
-                       contributions[ numCon ].color[2]= floodlightRGB[2] * floodlightIntensity * f * ( 1.0f - ambientFrac );\r
-\r
-                       contributions[ numCon ].ambient[0]= floodlightRGB[0] * floodlightIntensity * f * ambientFrac;\r
-                       contributions[ numCon ].ambient[1]= floodlightRGB[1] * floodlightIntensity * f * ambientFrac;\r
-                       contributions[ numCon ].ambient[2]= floodlightRGB[2] * floodlightIntensity * f * ambientFrac;\r
-\r
-                       contributions[ numCon ].dir[0] = dir[0];\r
-                       contributions[ numCon ].dir[1] = dir[1];\r
-                       contributions[ numCon ].dir[2] = dir[2];\r
-\r
-                       contributions[ numCon ].style = 0;\r
-\r
-                       /* push average direction around */\r
-                       addSize = VectorLength( contributions[ numCon ].color );\r
-                       VectorMA( gp->dir, addSize, dir, gp->dir );\r
-\r
-                       numCon++;\r
-               }\r
+       if( floodlighty )
+       {
+               int k;
+               float addSize, f;
+               vec3_t dir = { 0, 0, 1 };
+               float ambientFrac = 0.25f;
+
+               trace.testOcclusion = qtrue;
+               trace.forceSunlight = qfalse;
+               trace.inhibitRadius = DEFAULT_INHIBIT_RADIUS;
+               trace.testAll = qtrue;
+
+               for( k = 0; k < 2; k++ )
+               {
+                       if( k == 0 ) // upper hemisphere
+                       {
+                               trace.normal[0] = 0;
+                               trace.normal[1] = 0;
+                               trace.normal[2] = 1;
+                       }
+                       else //lower hemisphere
+                       {
+                               trace.normal[0] = 0;
+                               trace.normal[1] = 0;
+                               trace.normal[2] = -1;
+                       }
+
+                       f = FloodLightForSample( &trace, floodlightDistance, floodlight_lowquality );
+
+                       /* add a fraction as pure ambient, half as top-down direction */
+                       contributions[ numCon ].color[0]= floodlightRGB[0] * floodlightIntensity * f * ( 1.0f - ambientFrac );
+                       contributions[ numCon ].color[1]= floodlightRGB[1] * floodlightIntensity * f * ( 1.0f - ambientFrac );
+                       contributions[ numCon ].color[2]= floodlightRGB[2] * floodlightIntensity * f * ( 1.0f - ambientFrac );
+
+                       contributions[ numCon ].ambient[0]= floodlightRGB[0] * floodlightIntensity * f * ambientFrac;
+                       contributions[ numCon ].ambient[1]= floodlightRGB[1] * floodlightIntensity * f * ambientFrac;
+                       contributions[ numCon ].ambient[2]= floodlightRGB[2] * floodlightIntensity * f * ambientFrac;
+
+                       contributions[ numCon ].dir[0] = dir[0];
+                       contributions[ numCon ].dir[1] = dir[1];
+                       contributions[ numCon ].dir[2] = dir[2];
+
+                       contributions[ numCon ].style = 0;
+
+                       /* push average direction around */
+                       addSize = VectorLength( contributions[ numCon ].color );
+                       VectorMA( gp->dir, addSize, dir, gp->dir );
+
+                       numCon++;
+               }
        }
        /////////////////////
 
@@ -1791,7 +1832,7 @@ void LightWorld( void )
        vec3_t          color;
        float           f;
        int                     b, bt;
-       qboolean        minVertex, minGrid, ps;
+       qboolean        minVertex, minGrid;
        const char      *value;
        
 
@@ -2009,6 +2050,7 @@ int LightMain( int argc, char **argv )
        char            mapSource[ 1024 ];
        const char      *value;
        int lightmapMergeSize = 0;
+       qboolean        lightSamplesInsist = qfalse;
        
        
        /* note it */
@@ -2206,8 +2248,18 @@ int LightMain( int argc, char **argv )
                        i++;
                }
                
+               else if( !strcmp( argv[ i ], "-randomsamples" ) )
+               {
+                       lightRandomSamples = qtrue;
+                       Sys_Printf( "Random sampling enabled\n", lightRandomSamples );
+               }
+               
                else if( !strcmp( argv[ i ], "-samples" ) )
                {
+                       if(*argv[i+1] == '+')
+                               lightSamplesInsist = qtrue;
+                       else
+                               lightSamplesInsist = qfalse;
                        lightSamples = atoi( argv[ i + 1 ] );
                        if( lightSamples < 1 )
                                lightSamples = 1;
@@ -2216,6 +2268,18 @@ int LightMain( int argc, char **argv )
                        i++;
                }
                
+               else if( !strcmp( argv[ i ], "-samplessearchboxsize" ) )
+               {
+                       lightSamplesSearchBoxSize = atoi( argv[ i + 1 ] );
+                       if( lightSamplesSearchBoxSize <= 0 )
+                               lightSamplesSearchBoxSize = 1;
+                       if( lightSamplesSearchBoxSize > 4 )
+                               lightSamplesSearchBoxSize = 4; /* more makes no sense */
+                       else if( lightSamplesSearchBoxSize != 1 )
+                               Sys_Printf( "Adaptive supersampling uses %f times the normal search box size\n", lightSamplesSearchBoxSize );
+                       i++;
+               }
+
                else if( !strcmp( argv[ i ], "-filter" ) )
                {
                        filter = qtrue;
@@ -2690,6 +2754,11 @@ int LightMain( int argc, char **argv )
                {
                        lightmapExtraVisClusterNudge = qtrue;
                }
+               else if( !strcmp( argv[ i ], "-fill" ) )
+               {
+                       lightmapFill = qtrue;
+                       Sys_Printf( "Filling lightmap colors from surrounding pixels to improve JPEG compression\n" );
+               }
                /* unhandled args */
                else
                {
@@ -2698,6 +2767,38 @@ int LightMain( int argc, char **argv )
 
        }
 
+       /* fix up samples count */
+       if(lightRandomSamples)
+       {
+               if(!lightSamplesInsist)
+               {
+                       /* approximately match -samples in quality */
+                       switch(lightSamples)
+                       {
+                               /* somewhat okay */
+                               case 1:
+                               case 2:
+                                       lightSamples = 16;
+                                       Sys_Printf( "Adaptive supersampling preset enabled with %d random sample(s) per lightmap texel\n", lightSamples );
+                                       break;
+
+                               /* good */
+                               case 3:
+                                       lightSamples = 64;
+                                       Sys_Printf( "Adaptive supersampling preset enabled with %d random sample(s) per lightmap texel\n", lightSamples );
+                                       break;
+
+                               /* perfect */
+                               case 4:
+                                       lightSamples = 256;
+                                       Sys_Printf( "Adaptive supersampling preset enabled with %d random sample(s) per lightmap texel\n", lightSamples );
+                                       break;
+
+                               default: break;
+                       }
+               }
+       }
+
        /* fix up lightmap search power */
        if(lightmapMergeSize)
        {
@@ -2741,7 +2842,7 @@ int LightMain( int argc, char **argv )
        /* load map file */
        value = ValueForKey( &entities[ 0 ], "_keepLights" );
        if( value[ 0 ] != '1' )
-               LoadMapFile( mapSource, qtrue );
+               LoadMapFile( mapSource, qtrue, qfalse );
        
        /* set the entity/model origins and init yDrawVerts */
        SetEntityOrigins();